43440063 has 4 divisors (see below), whose sum is σ = 57920088. Its totient is φ = 28960040.

The previous prime is 43440029. The next prime is 43440073. The reversal of 43440063 is 36004434.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43440063 - 2²¹ = 41342911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43440013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7240008 + ... + 7240013.

It is an arithmetic number, because the mean of its divisors is an integer number (14480022).

Almost surely, 2^43440063 is an apocalyptic number.

43440063 is a deficient number, since it is larger than the sum of its proper divisors (14480025).

43440063 is a wasteful number, since it uses less digits than its factorization.

43440063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14480024.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 43440063 is about 6590.9076006268. The cubic root of 43440063 is about 351.5308806447.

Adding to 43440063 its reverse (36004434), we get a palindrome (79444497).

The spelling of 43440063 in words is "forty-three million, four hundred forty thousand, sixty-three".